1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
JulsSmile [24]
3 years ago
7

What is the ultimate end of a high mass star that has a core about 2.8x the mass of our sun?

Chemistry
2 answers:
kodGreya [7K]3 years ago
7 0

Answer:

A)   Pulsar

Explanation:

Pulsars are collapsed cores of stars usually supergiant stars

this happens when a supernova leaves behind the star core that has no outer protection layer of high gravity so the core collapses in on itself to create a very high magnitude star and also has trillions more mass.  

jolli1 [7]3 years ago
5 0

Answer:

A

Explanation:

It is formed after the star has ended its star cycle into a supernova. The star collapsed into a neutron star that is smaller than the progenitor star but has inherited angular momentum. IT, therefore, spins faster emitting electromagnetic radiation that seems to pulsate.

You might be interested in
Is carbon dioxide a reactant
Harman [31]

Answer: No

Explanation: <em>Reactants</em> are the substances present at the beginning of a chemical reaction. In the burning of natural gas, for example, methane (CH4) and oxygen (O2) are the reactants in the chemical reaction. <em>Products </em>are the substances formed by a chemical reaction. In the burning of natural gas, carbon dioxide (CO2) and water (H2O) are the products formed by the reaction.

3 0
3 years ago
After swimming in the ocean for several hours, the swimmers noticed that their fingers appeared to be very wrinkled or shriveled
MatroZZZ [7]
<span>The answer is hypertonic. In osmosis, water molecules move from a hypotonic solution to the hypertonic solution, through a semipermeable membrane. This occurs until both solutions become isotonic relative to each other.  In osmosis, only the movement of water molecules occurs since the ions are large enough to pass through the pores of the semipermeable membrane, in this case, the cell membrane. Due to loss of water in the process of osmosis, the cells in the fingers of the swimmers shrunk hence looked shriveled.</span>




5 0
3 years ago
18 Reema observed that most of the fish in the pond of her village were gradually dying. She
juin [17]

Answer:

a. The fish are dying due to factory pollution making the water of the pond uninhabitable.

b. The pond can be neutralized by adding something basic to balance the pH levels of the pond, or by adding significant amounts of water to dillute the acidity of the pond.

3 0
3 years ago
A 5.0-kg box is pushed across the floor with a force of 32 N. What is the frictional force on the box if the box's acceleration
Slav-nsk [51]
From\ 2nd\ Newton\ Law\ resultuant\ force: \\\\\ F_R=m*a=5kg*3,6\frac{m}{s^2}=18N\\\\&#10;F=32N\\\\&#10;F_f- friction\ force\\\\&#10;F_R=F-F_f\\\\&#10;F_f=F-F_R=32N-18N=14N\\\\Friction\ force\ is\ equal\ to\ 14\ N.
3 0
3 years ago
Read 2 more answers
We can calculate the mass of an object using a ____
aleksklad [387]

Answer:

analytical balance or the weighing balance

8 0
3 years ago
Other questions:
  • Which phrase describes an irregular galaxy?
    8·2 answers
  • How many electrons in an atom can share the quantum numbers n=2, l=1 and ml=1?
    7·2 answers
  • What is the mass in milligrams of 4.30 moles of sodium? use significant figures?
    5·1 answer
  • Which element is the most reactive?<br> - Sodium<br> - Nickel<br> - Carbon<br> -Oxygen
    5·1 answer
  • Becquerel expected to find (an)____when he developed the photographic plate that had Sun-exposed minerals on top of it. Becquere
    11·2 answers
  • Halogenation of propane​
    9·1 answer
  • Lily is doing a science experiment with a substance in a sealed jar. At first,
    10·1 answer
  • Consider the following reaction: 3Fe(s) + 4H₂O(g) ➞ Fe₃O₄(s) + 4H₂(g). To answer the following question: "How many moles of hot
    6·1 answer
  • Which sentences in the passage are true?
    10·1 answer
  • Balanced symbol equation for reaction between sodium carbonate solution and dilute sulphuric acid?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!